afni.nimh.nih.gov

Hi all,

I wish to perform a moderation analysis where brain moderates the relationship between two continuous between-subject variables. How can I do this with the AFNI suite? I know I can use a combination of 3dttest++ and 3dRegAna to do mediation analysis (brain as mediator) but I'm not sure about moderation. I have a hunch that 3dttest++ might do the trick - if this is the case, what specific steps do I need to do?

Many thanks,

Thomas